Home / 320,498-498,228

Finding the Third Proportional to 320,498 and 498,228

Calculator

Solution

The third proportional to 320,498 and 498,228 is: 774,516.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,498 : 498,228 = 498,228 : x
  2. Step 2: Convert to fraction form
    320,498/498,228 = 498,228/x
  3. Step 3: Cross multiply
    320,498x = 498,228 × 498,228
  4. Step 4: Simplify right side
    320,498x = 248,231,139,984
  5. Step 5: Solve for x
    x = 248,231,139,984/320,498
  6. Step 6: Final answer
    x = 774,516.97

Related Problems

Find third proportional to 160,249 and 249,114
Half scale
Find third proportional to 640,996 and 996,456
Double scale
Find third proportional to 320,500 and 498,231
Similar ratio
Find third proportional to 480,747 and 747,342
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.